Year	% of total population ages 15+ (national estimate)
1961	57.43
1966	59.53
1971	58.67
1976	61.42
1979	60.757
1980	61.295
1981	61.136
1982	60.781
1983	60.437
1984	60.55
1985	60.806
1986	61.887
1987	61.958
1988	62.379
1989	63.16
1990	63.747
1991	63.145
1992	62.874
1993	62.461
1994	62.945
1995	63.55
1996	63.527
1997	63.134
1998	63.006
1999	62.772
2000	63.147
2001	63.312
2002	63.38
2003	63.6
2004	63.472
2005	64.41
2006	64.777
2007	65.196
2008	65.492
2009	65.446
2010	65.406
2011	65.439
2012	65.17
2013	64.961
2014	64.715
2015	65.01
2016	64.879
2017	65.181
2018	65.644
2019	65.952
2020	65.032
2021	65.846
2022	66.659
2023	66.934